Design a formidable cyberpunk antagonist character. He is tall and lean, with a sleek, partially obscured face featuring a high-tech glowing mask that reveals cold, calculating eyes. His body showcases several cybernetic implants, including a robotic arm with built-in weapons. He wears a long, black leather trench coat adorned with neon blue highlights, suggesting advanced technology. His posture conveys confidence and dominance, with a slight smirk that hints at his cunning nature.